<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="2.css">
</head>
<body>
    <table>
        <thead>
        <tr>
        <th>姓名</th>
        <th>科目</th>
        <th>成绩</th>
        <th>删除</th>
        </tr>
        </thead>
        <tbody>

        </tbody>
    </table>
    <script type="text/javascript" src="3.js"></script>
</body>
</html>